package myGraphics.VectorGrafix;
import java.lang.Math;

public class Transformation2d extends Matrix2d{
	public Transformation2d() {
		super();
	}
	public Transformation2d(Matrix2d M) {
		super();
		for (int i = 0; i < 3; i++)  {
			for (int j = 0; j < 3; j++) {
				mterm[i][j] = M.mterm[i][j];
			}
		}
	}
	
	public Transformation2d translate(double Ax, double Ay) {		
		Matrix2d temp = new Matrix2d();
			
		temp.set_term(0, 0, 1.0);
		temp.set_term(0, 2, Ax);
		temp.set_term(1, 1, 1.0);
		temp.set_term(1, 2, Ay);
		temp.set_term(2, 2, 1.0);
	    
		return new Transformation2d(temp.multiply(this));
	}
	
	public Transformation2d scale(double Sx, double Sy) {
		Matrix2d temp = new Matrix2d();
	    
		temp.set_term(0, 0, Sx);
		temp.set_term(1, 1, Sy);
		temp.set_term(2, 2, 1.0);
		
		return new Transformation2d(temp.multiply(this));
	}
  
	public Transformation2d rotate(double Theta) {
		Matrix2d temp = new Matrix2d();
    
		double theSin = Math.sin(Theta);
		double theCos = Math.cos(Theta);
		
	    temp.set_term(0, 0, theCos);
	    temp.set_term(0, 1, -theSin);
	    temp.set_term(1, 0,theSin);
	    temp.set_term(1, 1, theCos);
	    
	    return new Transformation2d(temp.multiply(this));
	}
	  
	public Vector2d apply(Vector2d v) {
		return this.multiply(v);
	}
}